Yu Minghai, Hu Guangyue, Yang Tao, et al. Energy calibration of transmission curved crystal spectrometer using single filter[J]. High Power Laser and Particle Beams, 2014, 26: 102006. doi: 10.11884/HPLPB201426.102006
Citation:
Yu Minghai, Hu Guangyue, Yang Tao, et al. Energy calibration of transmission curved crystal spectrometer using single filter[J]. High Power Laser and Particle Beams, 2014, 26: 102006. doi: 10.11884/HPLPB201426.102006
Yu Minghai, Hu Guangyue, Yang Tao, et al. Energy calibration of transmission curved crystal spectrometer using single filter[J]. High Power Laser and Particle Beams, 2014, 26: 102006. doi: 10.11884/HPLPB201426.102006
Citation:
Yu Minghai, Hu Guangyue, Yang Tao, et al. Energy calibration of transmission curved crystal spectrometer using single filter[J]. High Power Laser and Particle Beams, 2014, 26: 102006. doi: 10.11884/HPLPB201426.102006
Theoretical calculation of X-ray three-dimensional diffraction optical path was presented for hard X-ray transmission curved crystal spectrometer. One application of this theory was to study the energy calibration, which was achieved traditionally by fitting the K absorption edges of filters or the characteristic peaks of experimental spectra. Obvious error was found in the low energy region of the calibrated spectrum, by taking into account the misalignment of spectrometer or the assembled error of detector. In order to avoid the calibration error and calibrate the spectrometer only by one filter, a new method for energy calibration was presented and verified by experimental measurement of an Ag anode X-ray source.